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1da177e4 LT |
1 | /* |
2 | * Copyright (C) 2000 Jeff Dike (jdike@karaya.com) | |
3 | * Licensed under the GPL | |
4 | */ | |
5 | ||
6 | #include "linux/config.h" | |
7 | #include "linux/mm.h" | |
8 | #include "linux/module.h" | |
9 | #include "linux/sched.h" | |
10 | #include "linux/init_task.h" | |
11 | #include "linux/mqueue.h" | |
12 | #include "asm/uaccess.h" | |
13 | #include "asm/pgtable.h" | |
14 | #include "user_util.h" | |
15 | #include "mem_user.h" | |
0f80bc85 | 16 | #include "os.h" |
1da177e4 LT |
17 | |
18 | static struct fs_struct init_fs = INIT_FS; | |
19 | struct mm_struct init_mm = INIT_MM(init_mm); | |
20 | static struct files_struct init_files = INIT_FILES; | |
21 | static struct signal_struct init_signals = INIT_SIGNALS(init_signals); | |
22 | static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); | |
23 | EXPORT_SYMBOL(init_mm); | |
24 | ||
25 | /* | |
26 | * Initial task structure. | |
27 | * | |
28 | * All other task structs will be allocated on slabs in fork.c | |
29 | */ | |
30 | ||
31 | struct task_struct init_task = INIT_TASK(init_task); | |
32 | ||
33 | EXPORT_SYMBOL(init_task); | |
34 | ||
35 | /* | |
36 | * Initial thread structure. | |
37 | * | |
38 | * We need to make sure that this is 16384-byte aligned due to the | |
39 | * way process stacks are handled. This is done by having a special | |
40 | * "init_task" linker map entry.. | |
41 | */ | |
42 | ||
43 | union thread_union init_thread_union | |
44 | __attribute__((__section__(".data.init_task"))) = | |
45 | { INIT_THREAD_INFO(init_task) }; | |
46 | ||
47 | void unprotect_stack(unsigned long stack) | |
48 | { | |
0f80bc85 JD |
49 | os_protect_memory((void *) stack, (1 << CONFIG_KERNEL_STACK_ORDER) * PAGE_SIZE, |
50 | 1, 1, 0); | |
1da177e4 LT |
51 | } |
52 | ||
53 | /* | |
54 | * Overrides for Emacs so that we follow Linus's tabbing style. | |
55 | * Emacs will notice this stuff at the end of the file and automatically | |
56 | * adjust the settings for this buffer only. This must remain at the end | |
57 | * of the file. | |
58 | * --------------------------------------------------------------------------- | |
59 | * Local variables: | |
60 | * c-file-style: "linux" | |
61 | * End: | |
62 | */ |